Thanks Dennis....I weigh 170 and ride mainly on 4 lanes and some occasional twisties in the mountains north of Atlanta. I have a Clymer but it doesn't go up to 2003 and apparently the earlier bikes had a plug on the fork down near the axle. Consequently, do you have a suggestion for finding info on how to change the fork oil on this particular model? I would be most appreciative. Barge ----- Original Message ----- From: Dennis Hammerl To: [email protected] Sent: Thursday, March 11, 2010 11:32 PM Subject: Re: [Nighthawk Lovers] cb700sc valve noise??
Of and by itself, using all of the travel available is not a bad thing. Remember if you were motocrossing, the object would be to use 99% of it every lap. Less and it would be too hard, more and it would be too soft. I don't know anything about how much you weigh or how you ride nor what the roads are like where you are. If you feel it's too soft or tuning would help with control, that can be addressed. Stiffening a front end can have bad side effects. The operative word is compliant when dealing with suspension. Removal is not needed to change fork oil. IMHO; the later versions of Nighthawks have soft suspensions. I would tailor one for myself. Oil viscosity only changes compliance and not travel. For that, you have to alter spring pre-load or rate. On bikes with air-assist, that can be increased too. The early models have many adjustments to tune suspension. The later versions gave these things up along with many other features as cost cutting measures. ------------------------------------------------------------------------------ From: the Bargers <[email protected]> To: [email protected] Sent: Thu, March 11, 2010 9:55:21 PM Subject: Re: [Nighthawk Lovers] cb700sc valve noise?? I've got a 750 2003 Nighthawk that I recently purchased from a dealership. It's got 5000k miles on it. Uncertain as to if or when the fork oil has been changed or is the right weight. I put some zip ties on the forks and measured the travel after a day of riding (including speed bumps) and it topped out at 3 and 3/4 inches. Does this seem about right or do I need to add a heavier oil. On this model there doesn't appear to be drain plugs at the bottom so it would appear that I am going to have to remove the forks to change the oil. Any help would be appreciated. Thanks, Barge ----- Original Message ----- From: Dennis Hammerl To: [email protected] Sent: Wednesday, March 10, 2010 11:02 PM Subject: Re: [Nighthawk Lovers] cb700sc valve noise?? I won't even guess. Just tear-down and find out. Riding it doesn't do it any good, just makes the bill higher later. ---------------------------------------------------------------------------- From: Burke <[email protected]> To: Nighthawk Motorcycle Lovers! <[email protected]> Cc: [email protected] Sent: Tue, March 9, 2010 11:12:00 AM Subject: [Nighthawk Lovers] cb700sc valve noise?? Hello, I've recently just picked up an 1986 cb700sc. As I was riding it the other day and there is a noise coming from the upper left side of the motor (riders position). The noise is not there at idle, lower middle or bottom of the throttle and there is no power loss and/or vibrations. It seems to be there @ 3-5k RPM's. It is not a knocking sound. To me it sounds as if it has a bad valve or something is loose. Any thoughts or ideas would be appreciated. Thanks Burke -- You received this message because you are subscribed to the Google Groups "Nighthawk Motorcycle Lovers!" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/nighthawk_lovers?hl=en. -- You received this message because you are subscribed to the Google Groups "Nighthawk Motorcycle Lovers!" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/nighthawk_lovers?hl=en. -- You received this message because you are subscribed to the Google Groups "Nighthawk Motorcycle Lovers!" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/nighthawk_lovers?hl=en. -- You received this message because you are subscribed to the Google Groups "Nighthawk Motorcycle Lovers!" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/nighthawk_lovers?hl=en. -- You received this message because you are subscribed to the Google Groups "Nighthawk Motorcycle Lovers!" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/nighthawk_lovers?hl=en.
